Type-writing machine.



. A. A. JOHNSON. TYPE WRITING MACHINE. APPLICATION FILED SEPT. 25, 1914.

- Patented Dec.12,1916.

. i 5.,city andState of.

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i 11.,cfect a uniforrniced is thus avoided and the sheets intoatheimaehinej .gllndrre ui 'or'n-ayri'ronx, N. Y'.',' A CORPORATION orDELawAn I YTFUILPEI-WBIIING MACHINE. Specification of Letters Patent. Patented Dec. 12, 1916- Application riled September 25, 1914;. Serial 110.863,!36.

'* TMZZZ whom it mcyconcem: gage a clutch surface connected with the Beat knoWn thatLARTHUR A. JoHNsoN, Winding spool and advance the spool a step citizen of ,th'e United State's, residing in at each complete reciprocationof the'dri'ver. thorough qf Bronx: in the county of Bronx, The latter may bea ctuatediby a key having lqew York, have invented a lostnnotion connection therewith. A. com- ,-cer.ta.ln new and useful' Improve ments in pensating arm bearing on the ro'l'l of web -Type-.Wri;ting Machines, of which the folon the winding spool is positioned thereby ..1 wing i5 a ifi ti to gradually introduce the lost motion he The object of my invention is to provide tween the operating key and driver as the loimproved means whereby the. tally'stri of diameter of the roll increases, to corresponda biUing-typewriting machine may be ineingly reduce the throw of the driver, wherespaced around the platen evenly the same by a unifor line-spacing, of the web is distance at each operation regardless of the effected. amount of paper on the winding spool of The tally strip may be used in connection l5 athe tally. strip device.

with work-sheets fed over a roller platen, It is usually the case that, as the diam- Which sheets extend laterally into position eter of the windin spool or reel grows to overlie-the tally strip. The usual key for larger, the greater ii ecomes 'the intake per throwing the feed rolls for said sheets ofl ,revolution'. This condition is undesirable, the platen, may serve as the actuating .20 especially in 'a tally strip, where anobject key for the tally-strip-feeding mechanism,

is to obtain as compact a list of numbers whereby the tall strip isline-s aced each .as-is possible, for it will be seen that as the time the feed r01 s are thrown ofi? topermit spool or reel fills, the paper strip will feed a sheet to be removed and replaced by a faster, thereby ca sing each number or line succeeding sheet.

H 25.. to. be written farther away from the pre Other features and advantages will here- .ceding one than the latter was from the one inafter appear. v before it, .To overcome this condition, I In the accompanying drawing, Figure 1 decrease the extent of angular rotation of is a perspective view of an Underwood the intake or winding reel "as the paper platen frame, with my device attached,

30 winds on said reel. but omitting the support. is a side Heretofore it has been p oposed to comelevation of a platen frame' 'witlitally strip pensate for the uneven h de-spacing above showing.- the device just aiterha'ving fed.

- referred to, byinterposing'between the wind-v the strip. Fig.3 is the normal-position of .1ng.spooland'.the pl'aten'a step-by-step'feedthe feeding devicewhenft e' spool: is praca .35 ing. inechanisrmin addition to the means to tically empty. Fig. 4; shows the position wind the'strip on the po 1, the latter meansof the feedlng deyice, atjthe end of the 9b comprising, co npensatin mechanism to feeding stroke, [but it .jlwill I understood .g'dapt the. iyitefof to theincreasing' that the-view is. diagrammatip 'tt'ndthat in iamratr... 9 1 "on e"'winding spool. practice;- the roll .of'paperi-riee not become" e w'th'i the"presentinvention; quite 1 111. operates directly by a In an Underwood machine, a'fcylindrical95 tepg'rotatlon tofdr aw "the web over 'p'latemlis men ted by meansogf axle 2 to t ,e. amplitu'depf" rotation at revolve-in th'egend 3.-oi iafplaten fraine, v.lea'ch'ffstep being di 'zcontrolled by the which usuallycarries'a papershelf 4,-"inp'oolj The need-of ycl-iningupwardlyand r ame y from the hy step mechanism-to ef- I platen; to .ai thelintroductioiif. of work in rm i tes i -.fieeding mechanismjgreatlysimplifiedi wood machine-types 5.4a

re m nted; on bars Y. I n.practisin'g the invention, the winding '6, --to strike rearwerdlly. the front .60 spool-for the telly, strip may have a stepside 01- the ,pla-ten-1 he. ste n: is rotated by-steprotzition imparted thereto by means -either by'kno b 7, or by the. dlijlary recip- 05 of a reciprocating 'driyer' or arm mmmted roosting line-space meehm I Front on the axle of the spool andhavingv a, one;- and rear pressure rgjlls19 gahd; 10 serve* to way driving dog or elutchmember to enpress the sheets age nst the' .p1aten'.so that A t the right-hand end of the mainplaten' i there mounted loosely on the shaft 2, an auxiliary indepei'ulently rotatable platen it, over which'is carried a tally strip 17 (from a. spool 18) and a :arbon strip 19 (from a spool 20); the leading end of the tally strip being fastened to receiving or winding spool 21, and the carbon strip end being fastened to receiving or winding spool 22. All of said spools are loosely supported in a frame 23 fixed to the platen frame.

I fter a bill has been Written, the operator prints the total debit and credit on the portion of the hill extending over the carbon sheet on the auxiliary platen. This, it will. be understood, causes the total debit and credit to be printed on the tally strip also. The operator then. in order to remove the bill, depresses the releasing key 15, thereby moving the feed rolls away from the platen.

'Whcn the releasing key is depressed, a linl; 24;, pivoted to'the arm 13 of said releasing device, is thrown upward, thereby rocking upwardly an arm 25, fast on a shaft 20 which is pivoted in the auxiliary frame 2 said link 24 and arm 25 having pin-andslot connection at 25. An arm 27, also fast on the shaft 26, has a slot 28 to be engaged by a pin 29 of a clutching arm or dog 30, pivoted in an arm 31; said arm 31 being pivoted on the tally strip spool shaft. 32. In the first part of the upward motion of the arm 27, the spool driving arm 31 is given a pivotal motion, thereby causing a clutching portion 33 of the clutch dog to grip the periphery of a clutch disk 34, fast on the tally strip shaft 32. The continued upward movement of the arm 27 will rotate the disk 34, thereby feeding the tally strip a distance equal to the amount ofone ordinary linespace.

The operator, having taken out the worksheets, ai'sesthe finger-piece 15 to allow the feed rolls to press against the platen, so that a ne'w work-sheetmay be fed around the plate-n when the platen is rotated. \Vhen the releasing key is raised, the 'link 24 is pulled down, thereby allowing the spring 35 to rcturnthe feedingdcvicc until an arm 30, f on the rock shaft 26, strikes against the paper on the tally strip spool. It will be seeirthat the 11ext:feedmg operation of the spool will not be quite as great in extent as the preceding ol'icration. This difference between two successive operations. of course. is very small, but is cumulative. so that when the diameter of the roll of paper on thcspool is doubled, for example. the arm 27 of the feeding device will be given only half the initial vibration. In other words. as the diameter of the paper roll increases, the amount of rotation given to the spool is correspondingly decreased; thereby feeding the paper the same amomitcach time the rcleasing key is operated.

The pin 37 on the arm Jill allows the arm 30 to be pivotally swung downwardly just enough to permit the clutching surface 33 to disengage the disk 3i. and permit arm .in with its lever 31 to swing down idly. The carbon intake roll and the tally strip roll may be geared together, thereby rotating both rolls with one feeding device.

Variations may be rcsorted to within thc scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention. I claim:

1. The combination. with a platen; of a receiving spool to which a strip or well is led from Said platen; line-spacing mcchzo nism for imparting a positive, stcp-by-step, rotary movement directly to said spool, to directly and positively feed the strip over said platen and wind it up in a roll on said spool; and compensating mechanism. controlled by the rolled-up strip on the spool as the diameter of the roll increases, for automatically reducing. proportionately to such increase, the angle through which said spool is turned at each rotation thereof. so as to maintain constant the extent of advance of the strip at each rotation of the spool.

2. The combination, with a platen; of a receiving spool to which a strip or web is led from said platen, line-spacing mechanism for imparting a. positive. stcpby-stcp, rotary movement directly to said spool. to directly and positively feed the strip over said platen and wind it up in a roll on said spool; and compensating, meclumism, controlled by contact with the rollcdalp" strip on the spool as the diameter of the roll increases, for automatically reducin proportionately to such increase, the angle through which said spool is turned at each rotation thereof, so as to maintain c'o'i'istant the extent of advance of the strip at each rotation of the spool.

.3. The combination with a revolublc platen, of means to supply a. web or strip to be fed aroululthc. platen, a winding spool on which the leading end-of the web is wound, manually operated lincspacing mechanism for positively rotating the w'inding spool step by step and thereby causing it to line-space said web at the platen, and adevice to compensate for the increasing dithrough whi" rotations of the spool,

ameter of the web on the spool as the atter is rotated, said device arranged to bear on the periphery of the roll of web on the spool, and operative by its change in position as the roll il'icrcases, to reduce the extent of each stepl y-step rotation of the spool substantially in proportion to the increase in the diameter of said roll.

l. The combination, with a platen; of a receiving spool. to which a strip or web is led from said platen; line-spacing inechanisin for imparting a positive, step-by-step, rotary movement directl i to said spool, to directly and positively 'eed the strip over said platen. and wind it up in a roll on said spool, said u'iechanism comprising a wheel connected to drive the col and reci )roeating driver having a one-Way driving connection with said wheel; and compensating mechanism controlled by the rolled-up strip on the spool as the diameter of the roll increases, for automatically reducing, proporti "lately to ch increase, the angle d spool turned at each rotation thel so to maintain constant the extent of advance of the strip at each rotation of the spool.

5. The combination with a platen, of mechanism for feeding a web or strip over the plants, comprising a winding spool or spindle or which. the leading edge of the strip is wound in a. roll, line-spacing mechanism comprising a wheel connected to rotate the spool, a driving ar'm pivoted concentric of said wheel, a pawl 01'- gripping member on said arm having a one-way driving connection with the wheel, means to reciprocate said arm and thereby impart a step-by-step rotation the spool and cause it to draw the web step by step over the platen, and a compensa-ting device arranged to bear on the periphery of said roll, said compensating device comprising means to position the driving arm to correspond to the diameter of said roll and correspondingly vary the angle of rotation of said roll at each opera- .tionandthereby cause the web to be advanced through equal distances at successive 6. The cornb'wjn'at'on' with a platen, of a spindle or, spoolon' which is wound in roll.

*the lcadingend'ofaweb or-strip fed over the platen, line s 'ecing mechanism compris log a wheel or isk connected to drive said spool andcause it'to draw-the web over the time; an. scillatin'g driving arm mounted 4 "on'the 1e oLsaid'wheelor-disk, and having an way fdfriving connection with said -oirated member for oscillating time, and e compensating device bearing against the 'roll'on said spool and forming a stop or' iige to determine the range of movemento said driving arm, said compo-neat ing device operative by its change of positron. as the roll increases in. diameter, to decrease the throw of said driving arm and thereby cause the web to be fed through equal distances at each operation.

7. In a. typewritin machine, the combina tion, with a main [Eaten and an auxiliary platen; of a receiving spool or spindle to which a strh or web led from the auxiliary platen; feed rolls to bear against a work-sheet on the main platen; a. key-operated device for moving the feed rolls off said main platen; line-spacing mechanism operated by the key for im arting a positive, stepby-step, rotary movement directly to said spool, to directly and positively feed the strip over said auxiliary platen and wind it up in a roll on said spool; and compensating mechanism operable automatically to reduce the angle through which said spool is rotated by said key in proportion as the diameter of the roll increases, so as to maintain constant the extent of advance of the strip ail/each rotation oi. the spool.

In a. typcwriting machine, the combii'iation, with a main. platen, and an auxiliary platen rotatable ielz'itively thereto; of a receiving spool or spindle to which a tallystrip is led from the auxiliary platen; teed rolls for the main platen; a finger key for throwing ofi said feed rolls: a linespacing device for impartin a positive, step-bystep, rotary movement cirectly to said spool, to directly and positively feed the tally-strip over said auxiliary platen and wind it up in aroll on said spool, said device operable by said key; and compensating means con-' trolled by the rolled-11p strip on the spool as thediarneter of the roll increases, for automatically reducing, proportionately to such increase, the angle through which said. spool is turned by said hey, so as to cause the tally-strip to be advanced the same linespace distance at each actuation of said key.

9. In a ty 'iewrlting machine, the combination with a main roller platen, of a. tally strip platen, a winding spool on which is wound the leading endof a tally strip fed over the tally strip platen, a second winding spool on which is wound a'carloon strip extending over the tally strip 'pla'ten, means forming a driving connection between; said spools to cause them to rotete'in unison, feed rolls for the. main platen, a key for throwingsaid feed rolls 0a" their platen, a

line-spacing device operable by said key to that said tally strip and carbon strip are advanced at the same rate and through equal distances at each operation of said hL Y.

10. In a typewriting machine. the com ination, with a platen: of a receiving spool to which a strip or web is led from said platen; a suppl v spool on which the strip is initially wound and from which it is led to said platen; line-spacing mechanism for imparting a positive, step-b '-step, rotuI' movementdirectly to the receiving spool. to directlv'and positively feed the strip over said platen and wind it up in a roll on said rereiving spool; and con'lpensating mechanism. controlled by the rolled-up strip on one of said spools as the diameter of the roll on that spool changes, to automatically reducing. proportionately to such change. th angle through which the receiving spool turned at each rotation thereof. so as to maintain constant the extent of advance of the strip at each rotation of said receiving spool.

11. 111a web-feeding mechanism. the cone bination with a feeding roll and a receiving roll, of a driving device for said receiving roll mounted on the axle. thereof, and a compensating device for actuating said driving device comprising an element arranged to rest upon the periphery of the. paper Wound up ,on-the receiving roll. and an element having a lost-motion connection with said driving device. L i

12. In a' web-feeding mechanism. the com bination with a roll: of a driving device mounted on the axle of the rollt and :1 cont pensating device. for actuating said driving device comprising an element connected to operate said device. and an element connected to be operated by the first-named element and arranged to engage the periphery of the web wound'up on said roll for regulating.

the effective, stroke of the said first-named element.

[3. In a webt'eedmg mechanism. the comhination with a winding spool to receive a web, of means to rotate the spool step by step td wind'the web in a roll thereon. said means comprising a reciprocating driver having a one-way driving connection with the spool to atlvanee'the latter a step at each complete reciprocation of the driver. and a compensating device bearing on the roll and.

. eonnectedto the. driver to position the latter to correspond with the diameter of the roll and thereby so control the length of throw of the driver that the web is advanced by the -wnuling spool the same distance at each reciproeation of the driver.

14; In a web-feeding mechanism. the comhinatlon with a winding spool to receive. a

' web, ofa-reciprocating driver having a oneway driving connection with the winding spool to rotate the latter step by step to wind the web in a roll thereon, an actuating device for said driver. said actuating device operable through the same distance at each operation and having a lost-lilotion connection with the driver, and a. compensating device whose position is controlled by the diameter of the roll, said compensating device arranged to gradually introduce lostmotion between the driver and actuating device as the diameter of the roll increases, to thereby reduce the length of throw of the drive at each reciprocation and correspondingly reiducc the angle through which the pool is rotated.

1.3. In a weh feeding mechanism, the combination with a winding spool or spindle to receive a web and wind it in a roll thereon. of a driving device mounted to reciprocate on th 1 axle of the winding spool. a one-way driving clutch member carried by said driving devie* and arranged to engage a clutch surface carried with the winding spool, a compensating device arranged to position the driving device to correspond with the,

diameter of the roll, and a key-operated actuator for said driving devicevhaving a lostmotion connection therewith so that lost motion is introduced between said actuator and the driving device as the latter is shifted. to

reduce the angle through which the winding thereon to position and actuate said driving device. a compensating arm on said rock sln'tft'arranged to bear against the roll on the spool anil therehy variably control the normal or rest position of the driving device to correspond with the diameter of the roll. and actuating means to rock said shaft and thereby cause the driving device to he reciproeated at each operation through an angle inverselyproportional to the diameter of the roll, whereby a mnt'orm step-by-step feed of the web is ed'eeted.

17. In a web-feedinganeehanisni. the eombination with, a winding spool to receive a web,- of means to ett'ectstep-by-step rotation of the spool uh wind the web in avroll thereon. said means comprising a driving device mounted to reciprocate on the axle of said spool and having a one-way driving connection with the spool. a rock shaft.- a rock arm thereon to position'and actuate said driving device, a compensating arm on said rock shaft arranged to bear-against the roll on the spool and thereby variably eontrolthe normal or rest position of the driving device 7 t ,to correspond with the diameter of the roll.

and actuatingmeans to rock said shaft, said actuating means comprising a key, and a link connected to the key and having a lostmotion connection With saidrock shaft, permitting said rest position of the driver to be controlled by said compensating arm Without varying the normal position or length spool to Wind up the Web thereon, said de-- vice comprising an arm pivoted on said axle and provided with a movable clutching dog,

and an actuating member acting initially to move said dog relatively to said arm into clutching engagement With said spool and thereafter to move said arm and dog as a unit, so as to rotate the spool.

19. In a Web-feeding mechanism, the combination, with a Web-receiving spool, and its axle; of a driving devigze for rotating said spool to Wind up the Web thereon, said device comprising an arm pivoted on said axle and provided with a movable clutching dog, an arm having a lost-motion connection With said dog, so as to initially move said dog relatively to the first-named arm into clutching engagement with saidspool, and

to thereafter move said first-named arm and dog as a unit, and a member connected to operate the second-named arm.

20. In a web-feeding mechanism, the combination, with a web-receiving spool, and its axle; of a driving device for rotating said spool to Wind up the Web thereon, said device comprising an arm pivoted on said axle and provided With a movable clutching dog, a member connected with said dog for positioning and actuating said 'arm, a compensating member connected with said actuating member and arranged to bear upon the rolled-up strip on said spool, so as to variably control the normal or rest position of said arm to correspond With the diameter of the roll, and means for operating said actuating member, the latter When so operated,

acting initially to move said dog relatively to said arm into clutching engagement With said spool, and thereafter to mox e said arm and dog. as aunit, so as to rotate the spool.

21. The combination, with a main platen, and an auxiliary platen; of a receiving spindle or spool to which a strip or Web is led from said auxiliary platen; line-spacing mechanism for directly and, positively feeding the strip and Winding it up in a roll on said spool, said auxiliary platen rotating relatively to said main platen at each linespacing operation; and compensating mechanism operating automatically at each linespacing operation, to gradually reduce the amount of strip Wound up on the spool in proportion as the diameter of the roll increases, so as to maintain constant the extent of advance of the strip and the extent of angular rotation of the auxiliary platen at each line spacing operation.

22. The combination, with a main platen, and an auxiliary platen; of a receiving spindle or spool to which a strip or Web is led from said auxiliary platen; feed rolls to bear against a Work-sheet on the main platen; a key-operated device for moving -the feed rolls ofi said main platen; line-spacing mechanism operated by the key for directly and positively feeding the stri and Wind ing it up in a roll on said spoo said auxiliary platen rotating relatively to said main platen at each. line-spacing operation; and compensating mechanism cip erating automatically at each line-spacing operation, to gradually reduce the amount of strip wound up on the spool in proportion as the diameter (if the roll increases, so as to maintain constant the extent of advance of the strip and the extent of angular rotation of the auxiliary platen at each line-spacing operation.

ARTHUR A. JoHNsonf 

